Under dash speaker box



FIG. 1 is a top, front and right side perspective view of an under dashspeaker box embodying a new design, shown installed into a vehicle;

FIG. 2 is a top, front elevation view thereof, shown not installed in avehicle; and,

FIG. 3 is a front elevation view thereof.

The broken lines shown in the above figures depict environmental subjectmatter only and form no part of the claimed design in those embodiments.

CLAIM The ornamental design for an under dash speaker box, as shown anddescribed herein.